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[FreeBSD/releng/10.0.git] / sys / mips / cavium / usb / octusb_octeon.c
1 #include <sys/cdefs.h>
2 __FBSDID("$FreeBSD$");
3
4 /*-
5  * Copyright (c) 2007-2008 Hans Petter Selasky. All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28
29 #include <sys/stdint.h>
30 #include <sys/stddef.h>
31 #include <sys/param.h>
32 #include <sys/queue.h>
33 #include <sys/types.h>
34 #include <sys/systm.h>
35 #include <sys/kernel.h>
36 #include <sys/bus.h>
37 #include <sys/module.h>
38 #include <sys/lock.h>
39 #include <sys/mutex.h>
40 #include <sys/condvar.h>
41 #include <sys/sysctl.h>
42 #include <sys/sx.h>
43 #include <sys/unistd.h>
44 #include <sys/callout.h>
45 #include <sys/malloc.h>
46 #include <sys/priv.h>
47 #include <sys/rman.h>
48
49 #include <dev/usb/usb.h>
50 #include <dev/usb/usbdi.h>
51
52 #include <dev/usb/usb_core.h>
53 #include <dev/usb/usb_busdma.h>
54 #include <dev/usb/usb_process.h>
55 #include <dev/usb/usb_util.h>
56
57 #include <dev/usb/usb_controller.h>
58 #include <dev/usb/usb_bus.h>
59
60 #include <contrib/octeon-sdk/cvmx.h>
61 #include <mips/cavium/octeon_irq.h>
62 #include <contrib/octeon-sdk/cvmx-usb.h>
63
64 #include <mips/cavium/usb/octusb.h>
65
66 #define MEM_RID 0
67
68 static device_identify_t octusb_octeon_identify;
69 static device_probe_t octusb_octeon_probe;
70 static device_attach_t octusb_octeon_attach;
71 static device_detach_t octusb_octeon_detach;
72
73 struct octusb_octeon_softc {
74         struct octusb_softc sc_dci;     /* must be first */
75 };
76
77 static void
78 octusb_octeon_identify(driver_t *drv, device_t parent)
79 {
80         if (octeon_has_feature(OCTEON_FEATURE_USB))
81                 BUS_ADD_CHILD(parent, 0, "octusb", 0);
82 }
83
84 static int
85 octusb_octeon_probe(device_t dev)
86 {
87         device_set_desc(dev, "Cavium Octeon USB controller");
88         return (0);
89 }
90
91 static int
92 octusb_octeon_attach(device_t dev)
93 {
94         struct octusb_octeon_softc *sc = device_get_softc(dev);
95         int err;
96         int rid;
97         int nports;
98         int i;
99
100         /* setup controller interface softc */
101
102         /* initialise some bus fields */
103         sc->sc_dci.sc_bus.parent = dev;
104         sc->sc_dci.sc_bus.devices = sc->sc_dci.sc_devices;
105         sc->sc_dci.sc_bus.devices_max = OCTUSB_MAX_DEVICES;
106
107         /* get all DMA memory */
108         if (usb_bus_mem_alloc_all(&sc->sc_dci.sc_bus,
109             USB_GET_DMA_TAG(dev), NULL)) {
110                 return (ENOMEM);
111         }
112         nports = cvmx_usb_get_num_ports();
113         if (nports > OCTUSB_MAX_PORTS)
114                 panic("octusb: too many USB ports %d", nports);
115         for (i = 0; i < nports; i++) {
116                 rid = 0;
117                 sc->sc_dci.sc_irq_res[i] =
118                     bus_alloc_resource(dev, SYS_RES_IRQ, &rid,
119                                OCTEON_IRQ_USB0 + i, OCTEON_IRQ_USB0 + i, 1, RF_ACTIVE);
120                 if (!(sc->sc_dci.sc_irq_res[i])) {
121                         goto error;
122                 }
123
124 #if (__FreeBSD_version >= 700031)
125                 err = bus_setup_intr(dev, sc->sc_dci.sc_irq_res[i], INTR_TYPE_BIO | INTR_MPSAFE,
126                     NULL, (driver_intr_t *)octusb_interrupt, sc, &sc->sc_dci.sc_intr_hdl[i]);
127 #else
128                 err = bus_setup_intr(dev, sc->sc_dci.sc_irq_res[i], INTR_TYPE_BIO | INTR_MPSAFE,
129                     (driver_intr_t *)octusb_interrupt, sc, &sc->sc_dci.sc_intr_hdl[i]);
130 #endif
131                 if (err) {
132                         sc->sc_dci.sc_intr_hdl[i] = NULL;
133                         goto error;
134                 }
135         }
136
137         sc->sc_dci.sc_bus.bdev = device_add_child(dev, "usbus", -1);
138         if (!(sc->sc_dci.sc_bus.bdev)) {
139                 goto error;
140         }
141         device_set_ivars(sc->sc_dci.sc_bus.bdev, &sc->sc_dci.sc_bus);
142
143
144         err = octusb_init(&sc->sc_dci);
145         if (!err) {
146                 err = device_probe_and_attach(sc->sc_dci.sc_bus.bdev);
147         }
148         if (err) {
149                 goto error;
150         }
151         return (0);
152
153 error:
154         octusb_octeon_detach(dev);
155         return (ENXIO);
156 }
157
158 static int
159 octusb_octeon_detach(device_t dev)
160 {
161         struct octusb_octeon_softc *sc = device_get_softc(dev);
162         device_t bdev;
163         int err;
164         int nports;
165         int i;
166
167         if (sc->sc_dci.sc_bus.bdev) {
168                 bdev = sc->sc_dci.sc_bus.bdev;
169                 device_detach(bdev);
170                 device_delete_child(dev, bdev);
171         }
172         /* during module unload there are lots of children leftover */
173         device_delete_children(dev);
174
175         if (sc->sc_dci.sc_irq_res[0] && sc->sc_dci.sc_intr_hdl[0])
176                 /*
177                  * only call octusb_octeon_uninit() after octusb_octeon_init()
178                  */
179                 octusb_uninit(&sc->sc_dci);
180
181         nports = cvmx_usb_get_num_ports();
182         if (nports > OCTUSB_MAX_PORTS)
183                 panic("octusb: too many USB ports %d", nports);
184         for (i = 0; i < nports; i++) {
185                 if (sc->sc_dci.sc_irq_res[0] && sc->sc_dci.sc_intr_hdl[0]) {
186                         err = bus_teardown_intr(dev, sc->sc_dci.sc_irq_res[i],
187                             sc->sc_dci.sc_intr_hdl[i]);
188                         sc->sc_dci.sc_intr_hdl[i] = NULL;
189                 }
190                 if (sc->sc_dci.sc_irq_res) {
191                         bus_release_resource(dev, SYS_RES_IRQ, 0,
192                             sc->sc_dci.sc_irq_res[i]);
193                         sc->sc_dci.sc_irq_res[i] = NULL;
194                 }
195         }
196         usb_bus_mem_free_all(&sc->sc_dci.sc_bus, NULL);
197
198         return (0);
199 }
200
201 static device_method_t octusb_octeon_methods[] = {
202         /* Device interface */
203         DEVMETHOD(device_identify, octusb_octeon_identify),
204         DEVMETHOD(device_probe, octusb_octeon_probe),
205         DEVMETHOD(device_attach, octusb_octeon_attach),
206         DEVMETHOD(device_detach, octusb_octeon_detach),
207         DEVMETHOD(device_resume, bus_generic_resume),
208         DEVMETHOD(device_suspend, bus_generic_suspend),
209         DEVMETHOD(device_shutdown, bus_generic_shutdown),
210
211         DEVMETHOD_END
212 };
213
214 static driver_t octusb_octeon_driver = {
215         .name = "octusb",
216         .methods = octusb_octeon_methods,
217         .size = sizeof(struct octusb_octeon_softc),
218 };
219
220 static devclass_t octusb_octeon_devclass;
221
222 DRIVER_MODULE(octusb, ciu, octusb_octeon_driver, octusb_octeon_devclass, 0, 0);